Source:http://linkedlifedata.com/resource/pubmed/id/11684343
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
2001-10-30
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pubmed:abstractText |
The actions of melatonin on high-voltage activated calcium channels (HVACC) and intracellular free Ca(2+) concentration in cultured dorsal root ganglion (DRG) neurones from neonatal rats were investigated using the whole-cell patch clamp and the fura-2 fluorescence ratio Ca(2+)-imaging techniques. HVACC were pharmacologically and biophysically isolated and the effects of melatonin were investigated. Extracellular application of melatonin inhibited HVACC in a dose dependent manner. In calcium imaging experiments, application of extracellular recording medium containing 30 mM KCl evoked increases in intracellular free Ca(2+) that were dependent upon external Ca(2+) ions. This increase was prevented by both low (10 microM) and high dose (100 microM) of melatonin pre-treatment. The results of this study indicate that the pineal hormone melatonin has inhibitory actions on voltage dependent calcium entry in cultured rat DRG neurones.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Anticonvulsants,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/Fluorescent Dyes,
http://linkedlifedata.com/resource/pubmed/chemical/Fura-2,
http://linkedlifedata.com/resource/pubmed/chemical/Melatonin,
http://linkedlifedata.com/resource/pubmed/chemical/Potassium
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0304-3940
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
2
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pubmed:volume |
313
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
73-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11684343-Animals,
pubmed-meshheading:11684343-Anticonvulsants,
pubmed-meshheading:11684343-Calcium Channels,
pubmed-meshheading:11684343-Cells, Cultured,
pubmed-meshheading:11684343-Fluorescent Dyes,
pubmed-meshheading:11684343-Fura-2,
pubmed-meshheading:11684343-Ganglia, Spinal,
pubmed-meshheading:11684343-Melatonin,
pubmed-meshheading:11684343-Membrane Potentials,
pubmed-meshheading:11684343-Neurons, Afferent,
pubmed-meshheading:11684343-Patch-Clamp Techniques,
pubmed-meshheading:11684343-Potassium,
pubmed-meshheading:11684343-Rats,
pubmed-meshheading:11684343-Rats, Wistar
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pubmed:year |
2001
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pubmed:articleTitle |
Melatonin inhibits high voltage activated calcium currents in cultured rat dorsal root ganglion neurones.
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pubmed:affiliation |
Firat University, Faculty of Medicine, Department of Pharmacology, TR-23200 Elazig, Turkey. a.ayar@mailexcite.com
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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